baber/WOPTO huggingface dataset:
Patent GB-793029-A (GB)
Title: Improvements relating to change-speed gearing associated with hydrodynamic power-transmitting apparatus
IPC: F16H47/08
Filed: 1956-07-13
Abstract: 793,029. Hydrodynamic brakes. DAIMLERBENZ AKT.-GES. July 13, 1956 [July 14, 1955], No. 21779/56. Addition to 785,963. Class 103 (1). [Also in Group XXIV] In the gear of the parent Specification, wherein a change-speed gear is preceded by an hydrodynamic torque-converter 13 or coupling, bridged by a clutch in all ratios other than first, and having its turbine 18 releasably connected to the gearing as by a one-way clutch 21 and capable of being braked when the bridging clutch is engaged, for hydrodynamic braking of the vehicle, the turbine is either braked by an hydrostatic brake or the bridging clutch itself is an hydrostatic clutch. The energy dissipated in braking the vehicle is thereby shared in the hydrodynamic and hydrostatic devices, and liquid heated in the latter is cooled externally or utilized, e.g. for heating the vehicle. In Fig. 2 the bridging clutch Kh is hydrostatic of the variable-stroke piston, or gear type with throttle outlet 48, and the turbine has a brake B<SP>1</SP>, which may also be hydrostatic, application of which, together with throttling the hydrostatic clutch Kh, brakes the vehicle, the major part of the energy being dissipated in the hydrodynamic converter 13. In Fig. 1, not shown, the bridging clutch is frictional and an hydrostatic brake, directly geared to the turbine, absorbs the major part of the braking energy.
Patent GB-1214663-A (GB)
Title: Benzodiazepine derivatives
IPC: C07D243/12
Filed: 1969-04-29
Abstract: 1,214,663. Benzodiazepine derivatives. BOEHRINGER INGELHEIM G.m.b.H. 29 April, 1969 [29 April, 1968], No. 21880/69. Heading C2C. Compounds of the general formula (R 1  = H, C 1-15  straight chain alkyl, halomethyl, NHCH 3 , C 1-2  alkoxy, cyclohexyl, Ph optionally substituted by 1-2 halogen, Me, OMe or NO 2  substituents, PhCH 2 , styryl, 5-membered heterocyclic ring containing S or O; R 2  = H, halogen, Me, OMe; R 3  = H, halogen, Me, CF 3  in 7 or 8 position) are prepared by acylating a compound of the formula (X = H or alkali metal). The above compounds are psychosedatives, muscle relaxants and anticonvulsants, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-886886-A (GB)
Title: Improvements in and relating to refrigerators
IPC: F25D21/00
Filed: 1960-06-23
Abstract: 886,886. Thermal switches. GENERAL MOTORS CORPORATION. June 23, 1960 [July 20, 1959; Aug. 31, 1959], No. 21969/60. Class 38 (5). [Also in Group XIII] A thermal switch used to control a refrigerator defrosting means (see Group XIII) comprises a switch 52 controlled by a float 50 disposed within a receptacle 28 containing water 34 and mercury 56. The movable contact of the switch 52 is permanently connected to a conductor 54 carried by the float and extending into the mercury 56. A lead wire 58 connected to a source of power 36 extends into the mercury 56. The water 34 is partially vaporized periodically to cause the float 50 to close the switch 52. This energizes a solenoid 60 and causes it to raise a double pole, double throw, switch arm 62 to break the circuit of a compressor unit 20, to close a circuit to a defrosting heater 26 and to complete a hold-in circuit for the solenoid 60.
Patent GB-1381222-A (GB)
Title: Process for the production of polyurethane foams
IPC: C08G18/10
Filed: 1973-05-09
Abstract: 1381222 Polyurethane foams BAYER AG 9 May 1973 [13 May 1972] 22023/73 Heading C3R Polyurethane foams are prepared by reacting together (a) a polyhydroxyl compound having a M.W. of 800 to 10,000, (b) a polyisocyanate, (c) a blowing agent and (d) a cross-linking agent having a M.W. below 500, which is an aliphatic compound containing at least one hydroxyl group and at least one group of the formula wherein R<SP>1</SP> is alkyl or hydroxyalkyl containing 1 to 12 carbon atoms and R is either a hydrogen atom, a linear or branched chain alkyl or alkenyl group containing 1 to 18 carbon atoms, a group of the formula wherein x is 1 to 6, a group of the formula a group of the formula a group of the formula wherein x is 1, 2, 4 or 6, or a group of the formula the amount of (d) used being at least 3 parts by weight based on 100 parts by weight of component (a). Preferably the cross-linking agents are methylolether derivatives of the formula wherein R is as above and R<SP>1</SP> is C 1-12  alkyl. Components (a) to (c) are those which are conventionally used in the art.
Patent GB-1014323-A (GB)
Title: Photoelectric apparatus for railroad surveying
IPC: B61L1/10
Filed: 1962-06-07
Abstract: 1,014,323. Indicating condition of rail tracks. CANADA IRON FOUNDRIES Ltd. June 7, 1962 [June 30, 1961], No. 22094/62. Heading B7N. [Also in'Division G1] A system for railroad surveying comprises a light transmitter mounted for movement along a railway track, a light beam receiver similarly mounted, an opaque board mounted for movement along the track between the transmitter and the receiver adjacent the receiver, means responsive to beam reception to indicate low parts of the track surface, the said light beam receiver including a parabolic reflector having a photo-electric cell at its focal point masking means to mask off between at least one-fifth of the upper part of the reflector when the reflector is oriented to receive the transmitted beam. In the embodiment shown, a transmitter 10, Fig. 1, mounted on a wheeled frame 10a at a distance along the track to be surveyed of the order of 150 feet from the opaque shadow board 14 mounted on a wheeled frame 14a transmits a light beam such as an infra-red beam, above the track towards the receiver 12 also mounted on a wheeled frame 15a or a tamping machine, the wheeled frame 14a of the board 14 being attached at a distance of the order of 15 feet from the frame or tamping machine 15a. The receiver 12 comprises a hood 13 and a parabolic reflector 17, Fig. 2, with its photo-electric cell 18 and between the hood 13 and the reflector are secured a fresnel lens, a filter 16 and a masking disc 20. When on a level track, the board 14 and the mask 20 are so aligned as to prevent the beam from reaching the photo-electric cell 18 but if the board 14 travels over a low section of track its top edge drops below the masked portion 21 of the masking disc 20 allowing an appreciable amount of light to reach the photoelectric cell 18, the output of which is fed to an amplifier (Fig. 3, not shown) and utilized to light a warning lamp. Instead of using the mask 20 an equivalent portion (Fig. 4, not shown) of the reflector 17 may be made non-reflecting.
Patent GB-1203110-A (GB)
Title: Improvements in or relating to the processing of hevea latex
Inventor: JOHN CHERRAPPATHANATHU KURUVIL
IPC: C08C1/15
Filed: 1968-05-09
Abstract: 1,203,110. Coagulating latex. BOARD OF THE RUBBER RESEARCH INSTITUTE OF MALAYA. 22 April, 1969 [9 May, 1968], No. 22142/68. Addition to 1,192,407. Heading C3E. Hevea latex is coagulated by mixing therewith at a pH not above 8 a dialkyl sulphosuccinate surfactant and a salt of an alkaline earth metal. The process is particularly applicable to continuous coagulation processes wherein the mixture of latex and coagulants is poured on to a conveyer belt and lifted off the conveyer belt to be reduced to particulate form.
Patent GB-626315-A (GB)
Title: Improved means for protecting metal containers and other objects against corrosion
IPC: C23F13/02
Filed: 1946-07-25
Abstract: 626,315. Preventing corrosion. ESSEX AERO, Ltd., CROSS, R. J., and MAILLARD, E. F. July 25, 1946, No. 22171. [Class 123(i)] In a tank or like member of a less noble metal (e.g. magnesium, aluminium) corrosion due to the presence of a more noble metal (e.g. steel) in the presence of an electrolyte such as sea water, is prevented by inserting a sacrificial member of an alloy of the corrosion susceptible metal and one or more metals less noble than the latter (e.g. magnesum / lithium / calcium alloy). The introduction of the sacrificial member reverses the current flow in the electrolytic action. Specification 104,128, [Class 123(i)], is referred to.
Patent GB-259929-A (GB)
Title: Improved means for turning road vehicles in a confined space
IPC: B60S9/14
Filed: 1926-09-09
Abstract: 259,929. Sevault, A. M., and Gerard, A. L. J. Oct. 14, 1925, [Convention date]. Endless-track vehicles.-To facilitate turning vehicles in a small space. auxiliary endless chains 4 are connected at each side. to the chassis by rods 24, 25 acting as toggles. Power is supplied by the engine through a wheel 26 and the polygon formed by the curvilinear member 22, carrying the rollers 23, and the rods 24, 25 will vary in shape to bring the device into or out of action but its perimeter will remain constant. To turn the vehicle the chain on one side is driven in opposite direction to the chain on the other side.
Patent GB-1467958-A (GB)
Title: Apparatus for and method of manufacturing wood pulp
IPC: D21B1/14
Filed: 1974-05-20
Abstract: 1467958 Comminuting wood DEFIBRATOR AB 20 May 1974 [22 May 1973] 22455/74 Heading B2A Wood pulping apparatus comprises a rotatable disc bearing on at least one surface ribs bars or ridges, a retaining means for the wood to be pulped. As described eight stationary chambers surround the centre of the disc. Wood deliveries by a conveyor 35 Fig. 1 is released by pivoted supports 34. 35 on to a conveyor 24 at the centre of the disc. An appropriate wall 13 of a chamber is lifted and the chamber is charged with wood by a conveyor 24 Fig. 2 and the wood is then pressed down by a plate 18. The chambers are loaded sequentially. The feed can alternatively be from above the chambers by means not shown. The ribs or bars 8 Fig. 2 or 46 Fig. 3 are arranged radially and may be arranged on demountable segments made of steel or a metal alloy of same type. Water is supplied during grinding via pipes 45 and the water is typically at 40-90‹C with optional addition of pH controlling chemicals bleach or the like.
Patent GB-963162-A (GB)
Title: New refractory products,especially for nuclear fuels, and their method of manufacture
Inventor: BLUM PIERRE
IPC: G21C3/62
Filed: 1962-06-12
Abstract: In the production of refractory eutectic mixtures of oxides and nitrides having the formulae XO2/XN or XO2/YN, in which X and Y are metals of the lanthanide or actinide series the nitride may be prepared in situ by the following methods: (1) the oxide XO2 is heated with carbon whereby some of the oxide is reduced to metal which then forms a nitride with nitrogen from the atmosphere in the vessel; (2) the oxide XO2 is heated with metal X or Y at a high temperature in an atmosphere of nitrogen. In both processes the heating is such that a molten mix is obtained, the reactants are added in specific quantities to yield the desired eutectic, the nitrogen gas may be diluted with an inert gas and the total pressure is preferably between 50 mm. and 760 mm. of mercury. The heating may be carried out by induction or in an electric arc furnace.  In examples UO2/UN, ThO2/UN and ThO2/ThN eutectic mixtures are prepared.
Patent GB-174657-A (GB)
Title: Improvements in presses for briquetting or drying
IPC: B30B11/12
Filed: 1920-07-30
Abstract: 174,657. Bloxam, A. G., (Ges. f³r Maschinelle Druckentwõsserung). July 30, 1920. Hopper and plunger machines; rotary-mouldtable machines; delivery; strain, preventing.- In continuously-operating presses for expressing water from and briquetting materials containing a large proportion of water, for example peat or coal slimes, of the type comprising a circle of perforated moulds and plungers in which the plungers are operated by a cam-path, in the course! of one cycle the greater part of the movement, for instance, 70-75 per cent, is operative to compress the material whilst the part operative for discharge and recharging is comparatively small. Fig. 1 shows one form of press comprising a ring of moulds 1 rotated about a vertical axis through gearing 2. The moulds are fitted with lower plungers each having a roller running along a circular cam. To regulate the pressure, this cam may comprise sections hinged together and supported upon spring or hydraulic pressureregulators 16, Fig. 10. The moulds 1, Fig. 1, are furnished with covers 8, hinged at 9 and carrying rails 10 to engage abutment rollers 11 mounted in a stationary frame 12 to close the moulds, the covers being opened for delivery and recharging by a cam rail 13 engaging projections 14. Fig. 14 shows a modification comprising radial moulds 27 fitted with pairs of plungers 28, 29, operated respectively by cams 33, 34. Material is fed into each mould through a top opening 30, whilst the plungers are separated, the plungers are then brought together to compress the charge and finally the compressed briquette is extruded from the end of the mould and falls through a shoot 46 on to a conveyer 47.
Patent GB-598614-A (GB)
Title: Machine for cleaning and loading root crops
IPC: A23N12/00
Filed: 1945-09-05
Abstract: 598,614.  Root crop harvesters. SVENSKA SOCKERFABRIKS AKTIEBOLAGET, BYNKE, H. T., DOUGLAS, M., HOWELER, C. W. C., RASMUSSON, J. M., and ASTRAND, B. H. Sept. 5, 1945, No. 22900. [Class 6 (iii)] [Also in Group XXX] A machine for cleaning and loading root crops, comprises an inclined screw conveyer on a frame wherein a transport screw operates in a lattice-work and arranged on a central axle characterised in that the thread 2 comprises radial ribs 9 having their inner ends secured to the axle 8 on a helical line and having their outer ends secured to a member 10 forming the outer edge of the thread, and in that the lattice work of the trough 1 comprises ribs 11 of arc shape and which extend freely under the screw between two frame members 5.
Patent GB-710657-A (GB)
Title: Improvements relating to the harvesting of beet and like root crops
IPC: A01D23/02
Filed: 1951-10-02
Abstract: 710,657. Beet-harvesting. STANDEN & SONS, Ltd., F. A., and STANDEN, P. July 1, 1952 [Oct. 2, 1951], No. 22920/51. Class 6 (3) A beet-harvesting machine comprises a wheeled chassis 1, within which is mounted a verticallyadjustable sub-frame 6 carrying shares 7 and crop-elevating means (not shown), and a laterally offset topping unit adapted to operate on the adjacent crop-row. The elevating means, which deliver to a collecting vehicle, may be as shown in Specification 662,804, the frame 6 being hinged at its rear end to the chassis 1. The topping unit is carried by an arm 10, pivoted on the ground-wheel axle 3 outside the chassis 1 but within the span of the wheels 2, and comprises a set of coaxial feeler-discs 15 driven by a chain 17 from the axle 3, and a knife 25 carried by a holder 24 mounted in an adjustable bracket 23 on a member 12. The discs are serrated and are driven at a peripheral speed greater than that of the machine, and cleaning prongs 16 are interposed between them. The unit, which is adjustable along the axle 3, is suspended by a spring from a hand-lever on the main frame 1.
Patent GB-1340409-A (GB)
Title: Process for the manufacture of citronellal
IPC: C07C45/62
Filed: 1971-04-19
Abstract: 1340409 Citronellal L GIVAUDAN & CIE SA 19 April 1971 [25 March 1970] 22926/71 Heading C2C Citronellal is prepared by hydrogenating citral in the presence of a catalyst comprising palladium, water and a base at 5-150 C. and 5-600 p.s.i. The Pd may be on a carrier. The water may be in the catalyst and need not form a separate phase.
Patent GB-1102825-A (GB)
Title: Luminescent compositions
IPC: C09K11/77
Filed: 1966-05-24
Abstract: A terbium activated thorium oxyfluoride luminescent material is of a single-phase fluorite crystal structure, the proportions of Th and Tb cations and O and F anions being such that the maximum solubilities of terbium trifluoride and thorium tetrafluoride in thorium dioxide are not exceeded.  Starting materials of thorium and terbium oxides and fluorides may be mixed and heated to at least 900 DEG  C., preferably 1600 DEG  C. in an inert atmosphere up to 20 atmospheres pressure for instance.  The maximum solubility of TbF3 in ThO2 is given by Tb/(Th + Tb) = 0.05, the exact value varying with temperature and the F/Tb ratio, the single phase fluorite structure not being obtained above this, although new luminescent compositions can be obtained with higher proportions of Tb wherein a mixture occurs of the fluorite crystal structure diluted with compositions of other crystal structures; the practical lower limit is 0.0005.  The practical range of F/Tb is 0.5 to 100, preferably 1 to 40 while for the ratio F/(Th + Tb), the lower limit is 0.01, preferably 0.025, the upper limit being approximately 0.6.  Optimum values are 2.5 to 3.5 for F/Tb and 0.01 to 0.05, particularly 0.02, for Tb/(Th + Tb). Examples describe a number of variations in the preparations of a large number of materials and the relative luminescent efficiencies of the final products over a range of wavelengths 2630 to 6000 <\>rA. The phosphors can be used in X-ray intensifying screens, fluorescent lights e.g. low-pressure mercury lamps, and colour TV tubes.
Patent GB-903895-A (GB)
Title: An improved apparatus for the production of cast iron gutters
Inventor: RICHARDS JAMES AUBREY
IPC: B22D15/04
Filed: 1960-07-01
Abstract: 903,895. Casting-machines. MACFARLANE & CO. Ltd., WALTER. June 9, 1961 [July 1, 1960], No. 23049/60. Class 83 (1). In a machine for casting cast iron gutters between a troughshaped female die 10 and a male die 11, as described in Specifications 660,677 and 749,007 which are referred to, the female die is fixedly supported by a stool 13 located between its ends, the ends are supported by stools 14 in a manner permitting expansion and contraction of the die and preventing upward and downward movement, and there is means intermediate the central stool 13 and each end which permits expansion and contraction of the die but prevents bowing. The said means may comprise stools and brackets similar to those, 14, 18, 19, supporting the ends, or alternatively brackets 22, 23, connected by pivoted links 25.
Patent GB-442539-A (GB)
Title: Improvements in or relating to machines for throwing abrasive at blasting velocities
IPC: B24C5/06
Filed: 1934-08-09
Abstract: 442,539. Sand-blast; centrifugal fans. AMERICAN FOUNDRY EQUIPMENT CO., Byrkert Street, Mishawaka, Indiana, U.S.A.-(Assignees of Peik, L. D.) Aug. 9, 1934, No. 23076. Convention date, Aug. 14, 1933. [Class 60] [See also Group XXVI] A centrifugal machine for throwing granular abrasive for sand and like blasting comprises a number of throwing vanes having their inner ends spaced from their centre of rotation to form a space in which means is accommodated for projecting the abrasive outwardly on to the vanes across their inner edges at a predetermined angular position, thus determining the arc over which discharge of the abrasive occurs at the outer ends of the vanes. The apparatus shown comprises side wall plates 11, 12, of which the former is mounted on a high-speed shaft 10, and spacing-members 13 detachably bolted between the plates, which form between them discharge passages 18 for the abrasive. Detachable wear plates 60 with ribs 61 engaging grooves in the wall of the passages are held in place by screws 63. The means for projecting the abrasive at a predetermined angular position on to the inner ends of the blades comprises a cylindrical control member 24 having an aperture 45 through which the abrasive, supplied from a feed pipe 20, is projected by impeller blades 36. The chamber 24 is rotatably mounted on the circular head 21, so that it may be angularly adjusted to vary the position of the aperture 45 and hence that of the arc over which the abrasive is discharged at the periphery of the machine. The impeller vanes 36 are carried on a plate 37 having segmental slots 38 to enable it to be screwed in adjustable angular position to the face of a recess 28 in the end plate 11, the impeller blades thus rotating at the same speed as the vanes. Vanes with straight radiallyextending faces, over the entire length of which the replaceable wear plates may extend, may be employed. In another form, the outer portions of the passages 18 are inclined to the radial lines. Specification 442,584 is referred to.
Patent GB-395882-A (GB)
Title: Improvements in or relating to electric discharge tubes and apparatus incorporating the same
IPC: H01J3/02
Filed: 1932-08-18
Abstract: 395,882. Cathode-ray and R÷ntgenray tubes. TELEFUNKEN GES. FœR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Aug. 18, 1932, No. 23200. Convention date, Aug. 18, 1931. [Class 39 (i).] A cathode- or R÷ntgen-ray tube has an anode A in the form of an apertured disc, and a screen electrode S between the anode and cathode K for concentrating the beam and consisting of a flat or curved plate or wire mesh with a single opening for the penetration of the anode field to the cathode, the distance a between the cathode and the screen being not more than half the diameter b of its opening. The screen may have an adjustable negative-bias. The anode and screen may both extend almost to the container as shown, or the anode may be of much smaller size than the screen. Concentration mav be assisted by a gas filling.
Patent GB-299945-A (GB)
Title: Improvements in revolving doors
IPC: E06B3/90
Filed: 1927-09-05
Abstract: 299,945. Colman, T. B. Sept. 5, 1927. Revolving doors of the kind having folding wings and disc hinges, as described in Specifications 22552/10 and 271,190, and wing-retaining means such as described in Specification 188,294, are provided with toothed segments i - - l, two on each wing, said segments being in engagement with pinions on the door spindle to prevent canting of the wings. When folded, the doors engage two of the stops n - - q to prevent disengagement of the sectors and pinion. The recesses 3 in the centring member are undercut and engaged by correspondingly shaped noses 3<1> on the wing-retaining latch 4. The latchretaining bolt 10 has projections engaging grooves in the lugs 2, Fig. 2, and is provided with a screw adjustment 7 for the throw. Should the bolts fail to yield under pressure on the door, they are operated by an adjacent wing striking pivoted arms 13 which force cam-shaped rods 12 beneath the bolts, Fig. 3. The member 1 with which the latches engage is square or circular and formed with suitable radial struts.
Patent GB-424962-A (GB)
Title: Improvements in rotary washing or mixing apparatus
IPC: B28C5/20
Filed: 1933-08-22
Abstract: 424,962. Making milk-of-lime; washing granular materials. JENKINS, P. G., 11, Oakhill Gardens, Woodford Green, Essex, and GAS LIGHT & COKE CO., Horseferry Road, London. Aug. 22, 1933, No. 23347. [Classes 82 (i) and 82 (ii)] Milk-of-lime is made in a rotary drum which is mounted to rotate on a horizontal axis and is conical throughout the whole or a part of its length and has a narrow axial discharge opening b at its narrower end and a wider axial charging opening a at the other end. The lime is introduced through the shoot f and water, preferably nearly boiling, and if necessary steam are also introduced at this end of the drum, the milk of lime overflowing through the charging opening a. A baffle plate e is preferably provided inside the charging opening to prevent the discharge of any floating material. The sediment is carried along the drum by a helical rib c which defines a continuous helical groove terminating in the discharge opening b. The rib c may be made discontinuous and formed of overlapping sections d near the discharge opening to prevent the discharge of any substantial amount of liquid, and a small portion of the necessary water may be introduced at the discharge end. According to the Provisional Specification the apparatus may be used for washing ballast or other solid materials or for the concentration of metal ores.
Patent GB-204328-A (GB)
Title: New or improved calendering process
IPC: D21G1/00
Filed: 1923-09-18
Abstract: 204,328. Haubold Akt.-Ges., C. G. Sept. 19,1922, [Convention date]. Calendering; sizing.-In calendering paper in paper machines, a current of air is applied to the paper at the calenders w by nozzle pipes t. The air may be cooled or humid, and may have glazing or colouring matter or other materials incorporated with it.